[llvm] [Inliner] Put inline history into IR as !inline_history metadata (PR #190700)

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

Sorry for being late to the party, but this has coloured our CI deep dark red. 
This is causing a lot of issues in SPECv8 in LTO mode, and it is bisected to change.

I would like to revert this change, which I think is justified given the failures this is causing.
I am traveling to EuroLLVM today, so can't provide a reproducer this week. 

Since this is causing issues for quite a few days already, I will give it one more day, and I will revert this at the end of my day today, perhaps you can provide some insights, maybe we can avoid the revert.


https://github.com/llvm/llvm-project/pull/190700